What GRID functions can be used in the Raster Calculator?

Answer

ABS			FOCALMIN		ROTATE
ACOS			FOCALMINORITY		SAMPLE
ACOSH			FOCALRANGE		SELECT
AGGREGATE		FOCALSTD		SELECTBOX
ASCIIGRID		FOCALSUM		SELECTCIRCLE
ASIN			FOCALVARIETY		SELECTMASK
ASINH			GREATERTHAN		SELECTPOINT
ASPECT			GRIDASCII		SELECTPOLYGON
ATAN			GRIDFLOAT		SETNULL
ATAN2			GRIDLINESHAPE		SHAPEGRID
ATANH			GRIDPOINTSHAPE		SHIFT
BASIN			GRIDSHAPE		SHRINK
BLOCKMAJORITY		HILLSHADE		SIN
BLOCKMAX		HSV2BLUE		SINH
BLOCKMEAN		HSV2GREEN		SINK
BLOCKMEDIAN		HSV2RED			SLICE
BLOCKMIN		IDW			SQRT
BLOCKMINORITY		INT			STD
BLOCKRANGE		ISNULL			SLOPE
BLOCKSTD		KRIGING			SNAPPOUR
BLOCKSUM		LESSTHAN		SPLINE
BLOCKVARIETY		LINEDENSITY		SQR
BOUNDARYCLEAN		LINEDIRECTION		STREAMLINK
BUILDSTA		LINEDIST		STREAMORDER
BUILDVAT		LINESTATS		STREAMSHAPE
CEIL			LN			SUM
COMBINE			LOG10			TAN
CON			LOG2			TANH
CONTOUR			LPOS			TEST
CORRIDOR		MAJORITY		THIN
COS			MAJORITYFILTER		TREND
COSH			MAKESTACK		UPOS
COSTALLOCATION		MAX			VARIETY
COSTBACKLINK		MEAN			VISIBILITY
COSTDISTANCE		MED			WARP
EUCALLOCATION		MERGE			WATERSHED
EUCDIRECTION		MERGEVAT		ZONALAREA
EUCDISTANCE		MIN			ZONALCENTROID
EXP			MINORITY		ZONALFILL
EXP10			MIRROR			ZONALGEOMETRY
EXP2			MOSAIC			ZONALMAJORITY
EXPAND			NIBBLE			ZONALMAX
FLIP			NORMAL			ZONALMEAN
FLOAT			PATHDISTANCE		ZONALMEDIAN
FLOATGRID		PICK			ZONALMIN
FLOOR			POW			ZONALMINORITY
FLOWACCUMULATION	RAND			ZONALPERIMETER
FLOWDIRECTION		RANGE			ZONALRANGE
FLOWLENGTH		RANK			ZONALSTATS
FMOD			RECLASS			ZONALSTD
FOCALFLOW		REGIONGROUP		ZONALSUM
FOCALMAJORITY		RESAMPLE		ZONALTHICKNESS
FOCALMAX		RGB2HUE			ZONALVARIETY
FOCALMEAN		RGB2SAT
FOCALMEDIAN		RGB2VAL 

Note:
See the 'Spatial Analyst Functional Reference' for information on how to use each supported Spatial Analyst function. This Functional Reference is available in ArcGIS 8.2, via the online Desktop Help system (open the Spatial Analyst book in the table of contents and click the link 'Spatial Analyst Functional Reference'). To access the Functional Reference from the Raster Calculator click the 'About Building Expressions' button on the Raster Calculator then click 'Functional Reference for Spatial Analyst Functions.' Click 'Map Algebra syntax' within a topic to access information on usage, parameters and examples. 

Note:
With ArcGIS 8.2, to obtain usage information for Spatial Analyst functions, type the function into the Raster Calculator, select it, right-click and click Usage. 

Note:
In ArcGIS pre-8.2, with Workstation installed, information on these functions is available in ArcDoc.